Method for fabricating an ignitable heterogeneous stratified metal
structure
    9.
    发明授权
    Method for fabricating an ignitable heterogeneous stratified metal structure 失效
    用于制造可点燃的非均质分层金属结构的方法

    公开(公告)号:US5547715A

    公开(公告)日:1996-08-20

    申请号:US542976

    申请日:1995-10-13

    摘要: A multilayer structure has a selectable, (i) propagating reaction front velocity V, (ii) reaction initiation temperature attained by application of external energy and (iii) amount of energy delivered by a reaction of alternating unreacted layers of the multilayer structure. Because V is selectable and controllable, a variety of different applications for the multilayer structures are possible, including but not limited to their use as ignitors, in joining applications, in fabrication of new materials, as smart materials and in medical applications and devices. The multilayer structure has a period D, and an energy release rate constant K. Two or more alternating unreacted layers are made of different materials and separated by reacted zones. The period D is equal to a sum of the widths of each single alternating reaction layer of a particular material, and also includes a sum of reacted zone widths, t.sub.i, in the period D. The multilayer structure has a selectable propagating reaction front velocity V, whereV=K(1/D.sup.n).times.[1-(t.sub.i /D)]and n is about 0.8 to 1.2.

    摘要翻译: 多层结构具有可选择的(i)传播的反应前速度V,(ii)通过施加外部能量获得的反应起始温度和(iii)通过多层结构的交替的未反应层的反应而传递的能量的量。 由于V是可选择和可控的,所以多层结构的各种不同应用是可能的,包括但不限于它们作为点火器的用途,在接合应用中,新材料的制造,智能材料以及医疗应用和设备中的应用。 多层结构具有周期D和能量释放速度常数K.两个或更多个交替的未反应层由不同的材料制成并通过反应区分离。 周期D等于特定材料的每个单个交替反应层的宽度的总和,并且还包括周期D中反应的区域宽度ti的总和。多层结构具有可选择的传播反应前沿速度V ,其中V = K(1 / Dn)x [1-(ti / D)],n为约0.8至1.2。

    Dual material test specimen
    10.
    发明授权
    Dual material test specimen 失效
    双材料试样

    公开(公告)号:US4850715A

    公开(公告)日:1989-07-25

    申请号:US91826

    申请日:1987-09-01

    申请人: Norman H. Gaffin

    发明人: Norman H. Gaffin

    IPC分类号: G01N3/20 G01N25/00

    摘要: A test specimen is provided, that is constructed of dual materials, which are preferably metallic materials and which are more preferably an austenitic iron alloy and a ferritic iron alloy. The specimen is generally constructed as a rectangular configuration, with two principal legs, connected together by substantially rigid connections at their ends, with the legs being of the different materials, such that, when the specimen is subjected to heat, one leg will expand linearly an amount greater than the other leg allowing the imposition of bending stress, whereby a given leg will experience both tension and compression. Observation may then be made, by a microscopic examination or otherwise, of those surfaces that are adjacent the portions of the legs that experience most of the tension and compression, such that the effects of temperature on the materials may be observed and recorded.

    摘要翻译: 提供了由双材料构成的试样,其优选为金属材料,更优选为奥氏体铁合金和铁素体铁合金。 样本通常构造成矩形构造,其两个主腿通过其端部处的基本上刚性的连接连接在一起,腿部是不同的材料,使得当试样受热时,一条腿将线性膨胀 大于另一条腿的量允许施加弯曲应力,由此给定的腿将经受张力和压缩。 然后可以通过显微镜检查或其他方式观察经历大部分张力和压缩的腿的部分附近的那些表面,从而可以观察和记录温度对材料的影响。